Famous quotes containing the words labor and/or theory:
“The habits of our whole species fall into three great classesuseful labour, useless labour, and idleness. Of these the first only is meritorious; and to it all the products of labor rightfully belong; but the two latter, while they exist, are heavy pensioners upon the first, robbing it of a large portion of its just rights. The only remedy for this is to, as far as possible, drive useless labour and idleness out of existence.”
—Abraham Lincoln (18091865)
“The struggle for existence holds as much in the intellectual as in the physical world. A theory is a species of thinking, and its right to exist is coextensive with its power of resisting extinction by its rivals.”
—Thomas Henry Huxley (182595)
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